Hook for double heddle bars



Feb. 5, 1946. F. w. HOLLINGSWORTH. JR 2,394,178v

HOOK FOR DOUBLE HEDDLE BARS Original Filed July 5, 1945 \HHHHHHHHHHHHH MMME Patented Feb. 5, 1946 LINETE.

HOOK FOR DOUBLE HEDDLE BARS Frank W. Hollingsworth, In, Philadelphia, Pa., assignor to Walker Manufacturing Company, Inc., Philadelphia, Pa., a corporation of Pennsylvania Original application July 5, 1943, Serial No. 493,620. Divided and this application January 1, 1944, Serial No. 516,673

7 Claims. (01. 129-92) The object of the invention is to provide improvements in hooks for operatively supporting double, that is, pairs of closely adjacent heddle bars in loom frames. Such a pair of bars at the top of a frame cooperates with a lower pair in said frame to operatively support and alternately elevate and depress two sets of heddles simultaneously. This application is a division of Serial No, 493,620, filed July 5, 1943.

Another object is to provide a hook in which two angularly oscillatable elements are present, and which are maintained in either lowered, 01perative position, or in raised, inoperative position, by means of the same spring-pressed washer or the like, each of said elements in this form contacting boh of the heddle bars when in lowered position.

And a still further object is to provide a modified form in which two oscillatable elements, yieldingly positioned by a single spring, retain both bars of the pair normally in operative position, but which elements are automatically separated by a separate spring upon being released by said first spring.

With the objects thus briefly set forth, the invention comprises further details of construction and operation, which are hereinafter fully described, when read in conjunction with the accompanying drawing, in which Fig. 1 is a front elevational view of one embodiment of the invention, with its bar-retaining elements in lower operative position; Fig. 2 is a side elevational view of the same; Fig. 3 is a view similar to Fig. 1, but showing the bar-retaining elements in raised inoperative position; Figs. 4 and 5 are two front elevational views of a modified form of the invention with the bar-retaining elements respectively in lower operative and upper or raised inoperative positions; Fig. 6 is a side elevational view of the same in operative position; and Fig. 7 is a developed plan view of the element spreading spring per se.

In the drawing no complete heddle frame is shown, as it is felt that the art involved is so well understood and developed, that the position, use and function of the latches or hooks hereinafter described will be well appreciated. The hooks illustrated are in the position of those which are supported by the upper rail or shaft of a heddle frame, while said hooks when used in the lower frame shaft are merely inverted.

Referring to Figs. 1, 2 and 3, there is here shown a hook which comprises a stud l, which may be adjustably positioned within the frame shaft in any desired manner, said stud comprising a shank 2, rovided upon its forward and rear faces with oppositely directed recesses 3, which provide shoulders 4 for receiving and supporting a pair of heddle bars 5 above a terminal head 6. Extending transversely through the upper portion of the shank 2 is a double-headed pin i, which extends through an aperture 8 in and adjacent to the angular portion of each pair of bar-retaining elements 9. Each of said elements in this form of the device is provided with a pair of recesses 1,0 to receive the heddle bars 5 and to retain them in operative position by means of finger portions I l or the like, said elements normally lying closely adjacent to the laterally opposite surfaces of said head 2.

The upper portion [2 of each of said lements is angularly directed outwardly and diagonally upwardly (Fig. 1) to provide levers against which a washer I3 is pressed by means of a spiral spring M, which is 'adjustably tensioned by a knurled nut l5 carried by the stud I. As shown in Figs. 1 and 2, said members are normally maintained in their lowermost position to secure said heddle bars 5 in their respective operative positions.

However, when it is desired to release said bars for any purpose whatsoever, it is only necessary to manually oscillate said elements into the positions shown in Fig. 3, in which positions they are retained as long as may be desired by the spring-pressed Washer 13, pressing downwardly upon and in alignment with their upper angular portions [2, as shown in Fig. 3. After the heddles have been adjusted upon said bars, the latter may be secured in operative position merely by manually shifting said elements 9 from their retracted positions, after which the springpressed washer B will force them again with substantially equal pgsitiveness into their respective operative positions hereinbefore described.

,Referring to Figs. 4, 5 6 and 7, there is here shown a modified form of the invention, having several parts in common with the form shown in Figs. 1, 2 and 3, and therefore similarly numeraled. However, as the nut 15 in this instance releases tension upon the spring I4, an expansible spring I'l operates to force the bar-retaining elements from their normal operative position (Figs. 4 and 6) into their separated or inoperative positions (Fig. 5). Inthis instance, each of said elements is provided with an aperture IS in its lower portion in which is positioned one of the oppositely directed, reduced end portions IQ of said spring l'l, said spring being provided with an elongated central aperture 20, which permits it to encircle the shank 2 of the heddle-supmost positions under the tension of the spring I4 depressed by the nut 15.

Having thus described my invention, what I claim and desire to protect by Letters Patent 7 of the United States is:

1. The combination of a pair of heddle bars,-

with a hook comprising a member to support and separate said bars, a pair of elements carried by said member and angularly oscillatable in a plane parallel with said bars and having recesses to receive and secure said bar with respect to said member, a spring common to said members to yieldingly secure them inoperative locked position, an adjustable not also carried by said member to vary the tension upon said spring, and a second spring operative to spread said elements apart as they are released from the pressure of said first spring.

2. The combination of a pair of heddle bars, with a hook comprising a member to support and separate said bars, a pair of elements carried by said member and angularly oscillatable in a plane parallel with said bars and having recesses to receive and secure said bars with respect to said member, each of said elements having an angularly disposed upper portion, a member to pivotally secure said elements to said first member at their angular portions, a spring common to and pressing downwardly upon the upper portions of said elements, an adjustable nut also carried by said first member to vary the tension upon said spring, and a second spring operative to spread said elements apart as they are released fromthe pressure of said first sprir'ig.

3, The combination are pair of heddle bars, with a, hook comprising a member ,to support and separate said bars, a pair of elements carried by said member and angularly oscillatable in a plane parallel with said bars and having recesses to receive and secure saidbarse with respect to said member, a spring common to said elements to yieldingly secure them in operative 7 with a hook comprising a member to support and separate said bars, a pair of elements carried by said member and angularly oscillatable in a plane parallel with said bars andrhaving cesses to receive and secure said bar with re spect to said member, each of said elements having an angularly disposed upper'portion, a memher to pivotally secure said elements to said first member at their angular portions, 2. spring common to and pressing downwardly upon the upper portions of said elements, an adjustable nut also carried by said first member to vary the tension upon said spring, and a second spring positioned between said elements and surrounding said member, whereby said elements are spread apart as they are released from the pressure of said first spring.

5. The combination of a pair of heddle bars, with a hook comprising a member to support and separate said bars, a pair of angular elements pivotally secured to and wholly upon the opposite sides of said member adjacent to their angular portions, one end of each element comprising a pair of fingers normally extending upon the opposite sides of and securing said bars adjacent to said member when the opposite ends of said elements, extend generally in opposite directions away from said member, and means yieldingly pressing transversely upon or longitudinally of the said opposite end selectively and respec tively secure said fingers in bar-locking position or bar-releasing position.

6. The combination of a pair of heddle bars, with a hook comprising a member to support and separate said bars, a pair of angular elements positioned wholly upon the opposite sides of said member adjacent to their angular portions, means pivotally securing said elements to said member one end of each element comprising a pair of fingers normally extending upon the opposite sides of and securing said bars adjacent to said member when the opposite ends of said elements extend generally in opposite directions away from said member, resilient means yieldingly pressing transversely upon or longitudinally of the said opposite ends selectively and respectively secure said fingers in bar-locking position or bar-releasing position, and means to vary the tension upon said resilient means.

7. The combination of a pair of heddle bars, with a hook comprising'a member to support and separate said bars, a pair of angular elements positioned wholly upon the opposite sides of said member adjacent to their angular portions, a double-headed pin extending through said member and through elongated apertures in the angular portions of said elements and ,pivotally securing said elements to said member, one end of each element comprising a pair of fingers normally extendin upon the opposite sides of and securing said bars adjacent to said member when the opposite ends of said elements extend generally in opposite directions away from said member, resilient means to selectively press down wardly upon and transversely of said opposite ends of said elements to secure said fingers-in bar-locking position, or longitudinally of said opposite ends of said elements to temporarily hold said fingers in bar-releasing position.

FRANK W. HOLLINGSWORTH, JR. 

